Brick-truck.



PATBNTED OCT. 29. 1907.

H. J. DUNDAS. BRICK TRUCK. APPLICATION r1 LED NOV. 1. 1906 A II 7/4 ll mg? 1 wmullmry [iv/ 1 0a)- UNITED STATES PATENT OFFICE.

BRICK-TRUCK.

Specification of Letters Patent.

Patented Oct. 29, 1907.

Application filed ovember 1 1906- Sorial N0. 134L629.

To all whom. it may concern:

Be it known that I, I'IENRY Janus Duxohs, a subject of the King of GreatBritain, residing at liceside Junction, in the county of York. in theProvince of Ontario, Canada, have invented a new and useful Improvementin a Brick-'lruck, of which thc following is a specification.

My invention relates to a conveying truck, such as are commonly used inconnection with the manufacture of bricks; and the object of myinvention is to provide means that the body of the truck may be raisedand lowered on the carrying wheels.

The truck frame and the carrying axles, are coupled in combination witha series of lever arms, by which the body of the truck may be instantlylowered or raised on the carrying wheels, so that as the truck with theframe lowered is brought immediately under the brick pallets that it hasbeen purposelyconstructed to convey from one point to another, the framemay be raised by the aid of one of the levers, and the pallet lifted offstands or ledges arranged on each side of the tracks the truck is totravel on.

The stands or ledges are arranged to support the pallets while thebricks or molds are being piled thereon. When the pallets have beenreceived on the truck, they may be conveyed to the drying houses orkilns, where they may be deposited onto stands or ledges, by simplylowering the frame by the aid of one of the levers. it will beunderstood that the pallets will be constructed wider than the width ofthe truck for the purpose above specified.

In the drawings-l igure 'l is a. perspective view of the truck; Fig. 2is a side elevation showing the frame raised; Fig. 3 is a side elevationshowing the frame lowered; and, Fig. 4 is an end elevation of Fig. 2.

[like letters refer to like parts throughout the specitications anddrawings.

The frame of the truck comprises in its construction two sides ua,braced apart by a series of cross bars I). Extending the length of thesides (L4H, in parallel relation, and intersecting with the cross barsI), are supporting bars e-c.

cZtZ designate carrying shafts. extending across the frame of the truckwith their ends set in the supporting bars Arranged in parallel relationwith the shafts d d, and also having their ends set in the sup portingbars c-e, are fulcrum shafts w-a.

f-f designate the carrying axles, and g g the earrying wheels. The endsof the axles extend beyond the outer faces of the wheels. sutlicientlyfar to engage under the bottom edges of the sides of the frame, by whichit is supported.

Set on the under edges of the sides a-a, are bearing blocks h-h-. Theends of the axles engage under the bottom edge of the bearing blockswhen the frame of the truck is raised.

The axles and the carrying wheels are adjustably coupled with the frameof the truck by a series of coupling links f, one end of the link beingloosely fastened to the axle f, and the other end is loosely fastened tothe carrying shafts d.

j designate trip levers, mounted on the carrying axles ff, one end ofthe lever forming a connecting link between the axle and the carryingshaft (Z. The trip lovers are for the purpose of raising the frame onthe axles. l;k designates a second trip lever, mounted on the-fulcrumshaft 0. The trip lovers 1; are for the purpose of lowering the frame onthe axles. The short end of the lovers le -k are pivotally connected toa crank arm 1 mounted on the axles f.

l astened in blocks in depending from the supporting bars (k ll, is ashaft n.

o designates a short lever bar loosely mounted on the shaft n.

p-p designates coupling bars connecting each of the carrying axles withthe lever bar 0, so that by the op eration of either of the trip leversat either end of the frame the corresponding parts at each end of theframe will operate simultaneously, and both ends of the frame raise andlower in unison.

To lower the frame on the carrying axles, the trip lever is which is ina horizontal position when the frame is elevated, is forced downwardsinto a vertical position from either end, until the carrying wheelsadjust outwards to their limit. As the carrying wheels move outwards theends of the axles disengage from under the bearing blocks h, and engageunder the bottom edge of the sides a-a, and the frame lowers to theextent of the depth of the blocks h.

To raise the frame of the truck on the carrying axles, after it has beenlowered by the levers k, as above described; either of the trip levers jwhich have changed from a vertical to a horizontal position, is forceddownwards from either end of the frame, and the axles and carryingwheels are forced towards one another, and back under the bearing blocksh, and the frame is again raised to the height of the depth of thebearing blocks h.

It will be seen that the lovers adjust themselves to be subject todownward action to raise or lower the frame, by which less power isrequired than if it was necessary to draw upwards on the levers.

It will be understood the adjustment of the carrying axles and wheels,will be limited to the length of the links connecting the axles with theframe. As the axles and carrying wheels are coupled together by the'lever and coupling bars, both of the axles and carrying wheels willadjust in unison, by the operation of either of the lovers from eitherend of the frame.

What I claim as new and desire to secure by Letters Patent is- 1. In abrick truck, in combination with the axles and carrying wheels, of aframe adjustably mounted on said axles, connecting links adjustablyconnecting said frame with said axles, operating IGVOl enga ing withsaid axles and frame, and operating levers engaging with said frame andaxles. substantially as described.

2. In a brick truck, in combination with the axles and connecting barsoperating levers mounted on said i'ul- 2O crnra bar said operatinglevers engaging with crank arms carrying wheels of a frame adjustablymounted on sai F-znonnted on said axles, a lever bar mounted in saidframe,

axles, connecting links adjustably connecting said frame with saidaxles, operating levers engaging with said axles and frame, andoperating levers engg'ing with said I time and axle connecting saidaxles with said lever bar, substantially as described.

3. In a brick truck, in combination with the carrying axles and wheels,ol:' :1 frame adjustably mounted on said a lever bar mounted in saidframe, coupling barsl l l l l l coupling bars connecting said ax es withsaid lever liars, bearing blocks set under ed .5 of said sides offrames, sulr stantially as described.

Signed at Toronto, this 16th day of .Tune, 1906.

HENRY LUNGS DITNDAS.

la the presence 0t' M. H. SWIFT, A. A. Aiuus.

